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Again turn output hub to roll in the bearings. With a
feeler or taper gage, measure the gap between the
housing and the carrier, clockwise from and next to
each screw. To determine the required shim
thickness, take the average of the two feeler gage
readings. Remove carrier and install the required
shims. Note: Total shim thickness per carrier
should not include more than .009" plastic shims
and each plastic shim should be inserted between
two metal shims. Place a
Dow Corning RTV732 sealant on the face around
the I.D. of the end shim (sealant is to be between
reducer housing and shim) and install carrier on
reducer housing. Torque carrier bolts to value
shown in Table 7. Output hub should have an axial
end play of .001" to .003".
7. Using the same procedure as in step 6, adjust the
input shaft bearings, except the axial end play
should be .002" to .004".
Table 7 — Bolt Tightening Torque Values
Reducer
Housing Bolts
Size
(in.-lbs.)
HXT305A
HXT405A
HXT505A
1
/
" diameter bead of
8
Seal Carrier Bolts
(in.-lbs.)
600
204
600
360
900
360
8. Apply sealant to the input shaft cover gasket and
install input shaft cover in right-hand housing half.
Install input and output seals. Extreme care should
be used when installing seals to avoid damage due
to contact with sharp edges on the input shaft or
output hub. This danger of damage and consequent
oil leakage can be decreased by covering all sharp
edges with tape or paper prior to seal installation. Fill
cavity between seal lips with grease. Seals should be
pressed or tapped with a soft hammer evenly into
place in the carrier applying pressure only on the
outer edge of the seals. A slight oil leakage at the
seals may be evident during initial running in but
should disappear unless seals have been damaged.
9. Install bushing back-up plate and snap rings.
8
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